It's definitely not as simple as putting your designers in front of a visual programming language and then taking a vacation. They do need to be educated in som

It's definitely not as simple as putting your designers in front of a visual programming language and then taking a vacation. They do need to be educated in some design principles and, whenever they don't know how to solve something, they'll fetch a programmer to help them. In the end, though, when you have built up an existing team of designers and artists who know how to work in that environment, they can often train newcomers and help each other figure out some rather non-trivial stuff without it resulting in a terrible mess. Also, the way it's used where I work, the majority of these tasks are essentially shoveling data between different parts of the system and hooking existing things up to each other.